Mask

Details Mask Mask

1982-10-28

1985-02-26

Recla, Henry J.

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820617, A62B 700

Patent

active

045012725

ABSTRACT:
A mask in which an enclosure of an intake filtration chamber is partly or totally formed of a filtration medium so that a separate filtration medium need not be provided within the intake filtration chamber for replacement. The replacement of the filtration medium is effected by replacement of the entire intake filtration chamber. The invention provides a mask which is small in size and low in intake resistance and is free from a possible flow of contaminated air into the mask.

REFERENCES:
patent: 2114358 (1938-04-01), Schwartz
patent: 2206061 (1940-07-01), Splaine
patent: 2320770 (1943-06-01), Cover
patent: 2798483 (1957-07-01), Kashima
patent: 2811967 (1957-11-01), Stampe
patent: 3249106 (1966-05-01), Motsinger

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